Dash-Industry-Forum / dash.js

A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
http://reference.dashif.org/dash.js/nightly/samples/dash-if-reference-player/index.html
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No audio on live smooth stream #828

Closed ghost closed 9 years ago

ghost commented 9 years ago

Hi, trying to playback a live smooth stream broadcast using Microsoft Expression Encoder the player fails to play the AACL audio track with the following error

Audio Codec (audio/mp4;codecs="undefined") is not supported.

Looking at the manifest we found that the audio track QualityLevel element has an empty FourCC attribute: QualityLevel PacketSize="4" BitsPerSample="16" SamplingRate="44100" Channels="2" AudioTag="255" FourCC="" CodecPrivateData="1210" Bitrate="64000" Index="0"

The stream is played correctly using a Silverlight player.

wilaw commented 9 years ago

@Yi - This dash.js project only supports playback of DASH manifests (.mpd). You can extend the project to enable Smooth and I believe Orange did this, but you would need to use the code from their repository to do that correctly.

-Will

From: Yi Reply-To: "Dash-Industry-Forum/dash.js" Date: Monday, October 5, 2015 at 3:49 AM To: "Dash-Industry-Forum/dash.js" Subject: [dash.js] No audio on live smooth stream (#828)

Hi, trying to playback a live smooth stream broadcast using Microsoft Expression Encoder the player fails to play the AACL audio track with the following error

Audio Codec (audio/mp4;codecs="undefined") is not supported.

Looking at the manifest we found that the audio track QualityLevel element has an empty FourCC attribute:

The stream is played correctly using a Silverlight player.

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ghost commented 9 years ago

ok, thank you for your reply.